'Unfruitful' in the Bible

What was sown among the thorns, this is he who hears the word, but the cares of this age and the deceitfulness of riches choke the word, and he becomes unfruitful.

and the cares of this age, and the deceitfulness of riches, and the lusts of other things entering in choke the word, and it becomes unfruitful.

For if I pray in another language, my spirit prays, but my understanding is unfruitful.

Have no fellowship with the unfruitful works of darkness, but rather even reprove them.

Let our people also learn to maintain good works for necessary uses, that they may not be unfruitful.

For if these things are yours and abound, they make you to be not idle nor unfruitful to the knowledge of our Lord Jesus Christ.